Like bathing suits, sunscreens aren't one-style-fits-all—but the best ones are flattering, nonirritating, and prevent indecent exposure. New products offer extra-strength or innovative ingredients to deter aging, burning, and skin cancer.

This sunscreen deflects rays with zinc oxide and titanium dioxide. Green- and red-tea extracts "prevent damage and reduce inflammation," says Eric F. Bernstein, clinical associate professor of dermatology at the University of Pennsylvania. Broccoli extract, another antioxidant, has been shown to reduce skin-cancer rates in mice.